Low lying levels in Th228
Journal Article
·
· Nuclear Physics
The decay scheme Ac228 yields Th 238 has been reinvestigated. The observation of new conversion lines and coincidence relations establish a revised decay scheme. An analysis of the level scheme in the light of the unified model classifies the levels as members of two rotational bands above the ground state band. Two states of energies 328 and 396 kev with K = 0 and I = 1- and 3- are interpreted as an octupole vibrational land, and states at 966 and 1018 kev with K = 2 and 1 = 2+ and 3+ as a gamma -vibrational band. The presence of a second octupole vibrational band with K = 2 and I = 2-, 3-,... is suggested. The close similarity with the level schemes of other strongly deformed nuclei in the actinide as well as in the lauthanide regions is emphasized.
- Research Organization:
- Univ. of Copenhagen
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-001608
- OSTI ID:
- 4329812
- Journal Information:
- Nuclear Physics, Journal Name: Nuclear Physics Journal Issue: C Vol. 4; ISSN 0029-5582
- Publisher:
- Elsevier
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACTINIDES
ACTINIUM 228
BETA DECAY
COINCIDENCE METHODS
DECAY
DEFORMATION
ELECTRONS
ENERGY
ENERGY LEVEL SCHEMES
ENERGY LEVELS
EXCITATION
INTERNAL CONVERSION
MEASURED VALUES
MULTIPOLES
NUCLEAR MODELS
NUCLEI
PARITY
RARE EARTHS
ROTATION
SPECTRA
SPIN
THORIUM 228
UNIFIED MODEL
VIBRATIONS
GENERAL PHYSICS
ACTINIDES
ACTINIUM 228
BETA DECAY
COINCIDENCE METHODS
DECAY
DEFORMATION
ELECTRONS
ENERGY
ENERGY LEVEL SCHEMES
ENERGY LEVELS
EXCITATION
INTERNAL CONVERSION
MEASURED VALUES
MULTIPOLES
NUCLEAR MODELS
NUCLEI
PARITY
RARE EARTHS
ROTATION
SPECTRA
SPIN
THORIUM 228
UNIFIED MODEL
VIBRATIONS